7.6. USTATUS Command; Parameters ; Example - Page 282

CHAPTER 5 PJL - 73 

Parameters 

Variable

Value

Description

DEVICE

ON

Makes unsolicited device status valid for any status change

VERBOSE

Makes unsolicited device status valid for any of PJL parser warning, error
and status change

OFF

Makes unsolicited device status invalid for any status change

JOB

ON

Makes unsolicited job status (reporting job start/job end) valid

OFF

Makes unsolicited job status invalid

PAGE

ON

Makes unsolicited page status (reporting respective page printed and

OFF

Makes unsolicited page status invalid

TIMED

5 to 300

Makes timed unsolicited status (allowing the printer to send back
unsolicited status after an interval specified in seconds) valid

0

Turns TIMED USTATUS off (Makes timed unsolicited status invalid)

Example   

The application sends the following command to the printer : 

<ESC>%-12345X@PJL <CR><LF> 
@PJL COMMENT the INFO USTATUS command <CR><LF> 
@PJL ECHO This is a sample 2-28-1993 21:15:00 <CR><LF> 
@PJL INFO USTATUS <CR><LF> 
<ESC>%-12345X 

The printer may send back the following answer for the above command : 

@PJL ECHO This is a sample 2-28-1993 21:15:00 <CR><LF> 
<FF> 
@PJL INFO STATUS<CR><LF> 
DEVICE=VERBOSE [3 ENUMERATED]<CR><LF> 
 OFF<CR><LF> 
 ON<CR><LF> 
 VERBOSE<CR><LF> 
JOB=ON [2 ENUMERATED]<CR><LF> 
 OFF<CR><LF> 
 ON<CR><LF> 
PAGE=ON [2 ENUMERATED]<CR><LF> 
 OFF<CR><LF> 
 ON<CR><LF> 
TIMED=0 [2 RANGE]<CR><LF> 
 5<CR><LF> 
 300<CR><LF> 
<FF> 

7.6.

USTATUS Command 

Sending the 

USTATUS

 command makes unsolicited printer status (sending the printer status information to 

the host computer automatically without being requested for it) valid or invalid.  If the unsolicited status is 
set to ON with the 

USTATUS

 command, the printer sends unsolicited status information to the host 

computer at the time interval set by 

USTATUS TIMED

 command from when the status changes.  On the 

other hand, the 

DINQUIRE

, 

INQUIRE

 and 

INFO

 commands make the printer send a response only once, 

just after they are received.